Beacon Island Hotel

Until the First World War the luxury of vacation and travel had been the prerogative of the privileged. Today, however, with cheaper and faster means of travel, most of our transport difficulties have been solved, making such a luxury economically possible for the average person; while holidays are brought within the reach of practically everybody by the universal acceptance of the fact that a complete change of environment and occupation is essential to man's physical and mental health. Today, the holiday and tourist industry plays an important part in national economy, and as such should be planned on a national basis. Many countries have in fact done this by publicity and by encouraging a higher standard of holiday amenities. This has been found particularly necessary since World War II with the influx of tourists from all over the world and the realisation of the fact that the holiday amenities provided in South Africa are not up to the standard they should be. The main factors relating to these amenities are hotels and transport facilities. A country which possesses natural scenic and climatic advantages has the basic essentials of the holiday industry. If, in addition, its hotels and transport facilities bear a good reputation among its own people, it will inevitably attract tourists from other countries. South Africa has always had the first of these requirements - a good climate and magnificent scenery. To publicise these attractions and to raise the standard of the hotels and other facilities is the task of those concerned in making the holiday and tourist industry of the future one of national benefit

Microscopic Characterization of Nonmicrobial Gray Sapstain in Southern Hardwood Lumber

Southern red oak, ash, and hackberry sapwood containing nonmicrobial discolorations was examined by both light and scanning electron microscopy to determine the causes of these discolorations. Ray parenchyma cells in discolored sapwood of all three species contained globose to amorphous pigmented globules of starch. Ray parenchyma cells in nondiscolored sapwood occasionally contained a few globules. Results indicate that the formation of pigmented starch compounds occurs during normal air-drying operations and is intensified by slow-drying conditions. This results in the macroscopic sapwood discoloration commonly called gray stain

Small mammals and habitat structure along altitudinal gradients in the southern Cape mountains

Small mammals were sampled along altitudinal gradients in two mountain localities, the Swartberg and Baviaanskloof, in the southern Cape in summer 1977–1978. Species composition varied according to altitude and aspect with a total catch of six rodent and two shrew species. Correlations were found between abundance of rodent species and habitat variables, particularly vegetation structure and the cover of rock and bare soil. Rodent species diversity was negatively correlated with the proportion of total foliage at low to mid heights (40 - 80 cm). Factors controlling apparent habitat preferences are discussed together with modes of rodent niche separation. Extrapolation of the results is limited by the single season and restricted geographical coverage of the survey

Large Chiral Diffeomorphisms on Riemann Surfaces and W-algebras

The diffeomorphism action lifted on truncated (chiral) Taylor expansion of a complex scalar field over a Riemann surface is presented in the paper under the name of large diffeomorphisms. After an heuristic approach, we show how a linear truncation in the Taylor expansion can generate an algebra of symmetry characterized by some structure functions. Such a linear truncation is explicitly realized by introducing the notion of Forsyth frame over the Riemann surface with the help of a conformally covariant algebraic differential equation. The large chiral diffeomorphism action is then implemented through a B.R.S. formulation (for a given order of truncation) leading to a more algebraic set up. In this context the ghost fields behave as holomorphically covariant jets. Subsequently, the link with the so called W-algebras is made explicit once the ghost parameters are turned from jets into tensorial ghost ones. We give a general solution with the help of the structure functions pertaining to all the possible truncations lower or equal to the given order. This provides another contribution to the relationship between KdV flows and W-diffeomorphimsComment: LaTeX file, 31 pages, no figure. Version to appear in J. Math. Phys. Work partly supported by Region PACA and INF

Isospin Splitting in the Baryon Octet and Decuplet

Baryon mass splittings are analyzed in terms of a simple model with general pairwise interactions. At present, the $\Delta$ masses are poorly known from experiments. Improvement of these data would provide an opportunity to make a significant test of our understanding of electromagnetic and quark-mass contributions to hadronic masses. The problem of determining resonance masses from scattering and production data is discussed.Comment: 9 pages, LATEX inc. 2 LATEX "pictures", CMU-HEP91-24-R9

Dense domains, symmetric operators and spectral triples

This article is about erroneous attempts to weaken the standard definition of unbounded Kasparov module (or spectral triple). This issue has been addressed previously, but here we present concrete counterexamples to claims in the literature that Fredholm modules can be obtained from these weaker variations of spectral triple. Our counterexamples are constructed using self-adjoint extensions of symmetric operators

Rare earth cinnamates and their corrosion inhibition mechanisms for AS1020 steel

Speciation of the inhibitors lanthanum 2-hydroxy cinnamate and lanthanum 3-hydroxy cinnamate in solution has been evaluated and compared to the speciation of lanthanum 4-hydroxy cinnamate. The results have been correlated with corrosion inhibition efficiency for AS1020 steel in an aqueous chloride solution using a combination of analytical tools such as nuclear magnetic resonance (NMR) spectroscopy, electrospray mass spectrometry (ESMS), potentiodynamic polarisation

Presencia de minerales poco comunes en la roca alterada de un edificio medieval escocés colonizado por organismos biológicos

During the course of a study of biodeterioration at Hermitage Castle in the Scottish Borders various rare minerals: monohydrocalcite, nesquehonite and dypingite were found in association with the biological growths. Monohydrocalcite was found particularly in association with a green alga "Trentepohlia aurea". A brief review of previous publications concerning these minerals is given and the theory put forward with regard to the possible origin of the monohydrocalcite as a biogenic by product.En el transcurso de un estudio sobre el biodeterioro existente en el 'Hermitage Castle', localizado en los 'Scottish Borders' (frontera entre Escocia e Inglaterra), se detectó la presencia de monohidrocalcita, nesquehonita y dipingita, minerales considerados como poco frecuentes, asociados con la colonización biológica presente, especialmente en el caso de la monohidrocalcita y el alga verde Trentepohlia áurea. En este trabajo se presenta una revisión bibliográfica sobre estos minerales así como la teoría del posible origen biogénico de la monohidrocalcita

Shelfbreak jet structure and variability off New Jersey using ship of opportunity data from the CMV Oleander

© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Forsyth, J., Andres, M., & Gawarkiewicz, G. . Shelfreak jet structure and variability off New Jersey using ship of opportunity data from the CMV Oleander. Journal of Geophysical Research: Oceans, 125(9), (2020): e2020JC016455. doi:10.1029/2020JC016455.Repeat measurements of velocity and temperature profiles from the Container Motor Vessel (CMV) Oleander provide an unprecedented look into the variability on the New Jersey Shelf and upper continental slope. Here 1362 acoustic Doppler current profiler (ADCP) velocity sections collected between 1994 and 2018 are analyzed in both Eulerian and stream coordinate reference frames to characterize the mean structure of the Shelfbreak Jet, as well as its seasonal to decadal variability. The Eulerian mean Shelfbreak Jet has a maximum jet velocity of 0.12 m s−1. The maximum jet velocity peaks in April and May and reaches its minimum in July and August. In a stream coordinate framework, the jet is only identified in 61% of transects, and the mean stream coordinate Shelfbreak Jet has a maximum jet velocity of 0.32 m s−1. Evidence is found that Warm Core Rings, originating from the Gulf Stream arriving in the Slope Sea adjacent to the New Jersey Shelf, shift the Shelfbreak Jet onshore of its mean position or entirely shutdown the Shelfbreak Jet's flow. At interannual timescales, variability in the Shelfbreak Jet velocity is correlated with the temperature on the New Jersey Shelf 2 months later. When considered in a stream coordinate framework, Shelfbreak Jet have decreased over the time period considered in the study.J. F. and M. A. were supported by NSF OCE‐1634094 and OCE‐1924041. G. G was supported by NSF OCE‐1851261